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From: "Sören Brinkmann" <soren.brinkmann@xilinx.com>
To: Mike Looijmans <mike.looijmans@topic.nl>
Cc: <monstr@monstr.eu>, Rob Herring <robh+dt@kernel.org>,
	Pawel Moll <pawel.moll@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Ian Campbell <ijc+devicetree@hellion.org.uk>,
	Kumar Gala <galak@codeaurora.org>,
	Russell King <linux@arm.linux.org.uk>,
	Michal Simek <michal.simek@xilinx.com>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	Steffen Trumtrar <s.trumtrar@pengutronix.de>
Subject: Re: [PATCH v2 2/5] ARM: zynq: dt: Convert to preprocessor includes
Date: Mon, 7 Apr 2014 08:39:34 -0700	[thread overview]
Message-ID: <8db0b480-2c27-4f97-8712-e16fd39d4159@CH1EHSMHS038.ehs.local> (raw)
In-Reply-To: <53429754.8080105@topic.nl>

On Mon, 2014-04-07 at 02:17PM +0200, Mike Looijmans wrote:
> On 04/07/2014 07:58 AM, Michal Simek wrote:
> >Hi Soren,
> >
> >On 04/05/2014 01:14 AM, Soren Brinkmann wrote:
> >>Convert all Zynq DT files to the dtc preprocessor include syntax.
> >>This allows to include header files in the devicetrees like other
> >>SoC-types already do.
> >>
> >>Inspired-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
> >>(http://www.spinics.net/lists/arm-kernel/msg319832.html)
> >>
> >>Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
> >
> >These 4 patches needs more wider discussion if this is helpful or
> >not. Currently I can't see any value in it because everything
> >is just generated and fixed. I think I had the same discussion
> >with Laurent some weeks ago regarding this.
> 
> I would be kinda neutral here. I'd consider it helpful, it improves
> readability (regardless of whether they are generated or hand
> crafted). That's convenient for things like interrupt sensitivity, I
> can't remember whether 4 is level or edge type. On the other hand,
> the clock indices are just as much magic numbers as the memory
> addresses. If I suspect an error in that area, I'd start by lokking
> in /sys/kernel/debug/clk but wouldn't start in the DT.

I agree. Readability is better this way. And whether our generator spits
out magic numbers of these symbolic names should not be a big
difference, is it?

	Sören



  parent reply	other threads:[~2014-04-07 15:39 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-04 23:14 [PATCH v2 0/5] ARM: zynq: DT update Soren Brinkmann
2014-04-04 23:14 ` [PATCH v2 1/5] ARM: zynq: DT: Add 'clock-latency' property Soren Brinkmann
2014-04-07  5:46   ` Michal Simek
2014-04-11 19:41     ` Sören Brinkmann
2014-04-04 23:14 ` [PATCH v2 2/5] ARM: zynq: dt: Convert to preprocessor includes Soren Brinkmann
2014-04-07  5:58   ` Michal Simek
2014-04-07 12:17     ` Mike Looijmans
2014-04-07 12:24       ` Michal Simek
2014-04-07 17:10         ` Jason Gunthorpe
2014-04-07 18:02           ` Steffen Trumtrar
2014-04-08  7:03             ` Michal Simek
2014-04-08 17:27               ` Jason Gunthorpe
2014-04-10 10:44                 ` Michal Simek
2014-04-07 15:39       ` Sören Brinkmann [this message]
2014-04-04 23:14 ` [PATCH v2 3/5] ARM: zynq: dt: Use #defines for interrupt specifiers Soren Brinkmann
2014-04-04 23:14 ` [PATCH v2 4/5] dt-bindings: clock: Add Zynq-7000 header Soren Brinkmann
2014-04-04 23:14 ` [PATCH v2 5/5] ARM: zynq: dt: Use #defines for clock specifiers Soren Brinkmann

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